Are you a manufacturer or trading company?

Sinofastener is a manufacturer of fasteners with many years of experience in bolts, nuts, threaded rods, and washers in Ningbo, China.

Do you provide OEM/ODM services?

Yes, we accept OEM and ODM services for customized fastener needs.

How is the pricing determined?

We offer high-quality products at reasonable prices. Please send an inquiry, and we will quote you a price immediately for your reference.

Affordable Square Welding Nut - Bulk Orders Welcome

Name: Affordable Square Welding Nut - Bulk Orders Welcome
Brand: Ningbo Zhonglian Fastener Manufacture Co., Ltd.
SKU: 1968654392

Zhejiang, ChinaNingbo Zhonglian Fastener Manufacture Co., Ltd.

US$0.05

1,000-9,999 Pieces

US$0.03

10,000-99,999 Pieces

US$0.01

100,000+ Pieces

Product profile

Customization

Available

Material

High Strength Steel

Type

Thread Rods

Model NO.

Square Welded Nut

Connection

Common Bolt

Head Style

Round

Standard

GB, ASTM

Grade

10.9

MOQ

1000PCS

Certification

ISO9001

Delivery Time

25 Days

Durability

Enhanced

Sample

Free

Transport Package

25kg/Carton+Pallet

Specification

M6-M100, 30mm-3660mm

Trademark

FAST

Origin

Ningbo, Zhejiang

HS Code

7318151001

Production Capacity

2500 Tons/Month

Key features

High Strength Material: Made from high strength steel with Grade 10.9 for superior durability.

OEM/ODM Support: Accepts OEM and ODM services for customized fastener solutions.

Free Samples: Free standard fastener samples provided for new customers.

ISO9001 Certified: Manufacturing process certified under ISO9001 quality standards.

Multiple Finishes: Available in Zinc, HDG, Black Oxide, and other protective coatings.

Wide Standard Range: Complies with DIN, ASTM, ANSI, JIS, EN, ISO, and GB standards.

Company profile

Ningbo Zhonglian Fastener Manufacture Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedNearest Port: Ningbo Port, Shanghai portAverage Response Time: ≤5.61h CertifiedTerms of Payment: LC, T/T, D/P CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryNingbo Zhonglian Fastener Manufacture Co., Ltd. is identified as a Chinese limited company operating in Zhejiang and producing construction fasteners, including bolts, nuts, screws, washers, and non-standard fasteners. The supplied information shows ISO9001:2015 certification and also references ISO14001, ISOEN14399CE, and ISOEN15048 approvals. Reported manufacturing resources include automatic cold-forging equipment, hot-forging lines, heat-treatment lines, and an inspection center. The company states that it serves international markets and maintains overseas service institutions, but the evidence does not fully establish current service performance. Production information is inconsistent across the slices regarding establishment date, employee count, plant area, and capacity, so scale should be verified. Customization capability is not explicitly demonstrated. Trade records identify buyers in the United Kingdom and Vietnam, but the number of documented transactions is limited.

Supplier typeThe supplier is classified as a combined business entity and limited company in China, with a stated manufacturing address in Zhejiang. Its products, manufacturing equipment, and description identify it as a fastener manufacturer rather than only a trading intermediary.

CertificationsThe supplier explicitly provides an ISO9001:2015 certificate. Its company description also references ISO9001, ISO14001, ISOEN14399CE, and ISOEN15048 approvals, indicating multiple quality, environmental, and product-related certifications or approvals.

After-Sales capabilityThe supplier states that it provides considerate service and has six domestic direct-sale offices plus overseas regional service institutions in Hungary, Dubai, Malaysia, and the UK. These statements support a service network, although no specific after-sales procedures, response standards, or performance evidence are provided.

Production capacityThe supplier reports nearly 100 automatic cold-forging machines, six hot-forging lines, four imported automatic mesh-belt heat-treatment lines, a professional inspection center, and monthly capacity of up to 2,500 tons. It also lists a broad range of fastener products and international standards, providing explicit evidence of substantial manufacturing capability.

Client casesTrade records associate the supplier with CYNTECH ANCHORS LTD in the UK and CÔNG TY TNHH CST INDUSTRIES VIỆT NAM in Vietnam, covering hex screws, hex nuts, and stainless-steel flat washers. These records demonstrate identifiable international buyer activity, but only a small number of transactions are shown.

Product Q&A

Q:What is your main product range?

Our main products include fasteners such as bolts, screws, rods, nuts, washers, anchors, and rivets. We also produce stamping and machined parts.

Q:How do you ensure product quality?

Every process is checked by our quality inspection department. We personally visit the factory to check product quality and request QC inspection for every production link. We also provide MTC and mill certificates.

Q:What is the delivery time?

The general delivery time is 30 to 45 days, or according to the quantity ordered.

Q:What are the payment terms?

30% value of T/T in advance and the remaining 70% balance on B/L copy. For small orders less than 1000 USD, we suggest paying 100% in advance to reduce bank charges.

Q:Can you provide free samples?

For new customers, we provide free samples for standard fasteners, but clients pay the express charges. For old customers, we send free samples and cover the express charges ourselves.